Description: parking lots, only one can park vehicles crossing the narrow but only one door and out of cars.NPai sidewalk in the first one into the cart; When the car park within a certain vehicles to leave the car park is due to a narrow passage, after it into the garage of vehicles must first withdraw from the garage to make way for it to be a large open car door, to make way for its vehicles according to the original order to enter the depot. here the assumption that not from the sidewalk on the move. trial design of a car park management system.
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